hdu 1059 dividing

#include <stdlib.h>
#include <string.h>
int w[7] = {0};
int (int T,int p)
{
    if ( p < 1) return 0;
    if (!T) return 1;
    
    while (w[p] == 0 || p > T) p--;  
    w[p]--;
    //做二分选择放入背包和不放入背包
    return ( knap(T-p,p) || knap(T,p-1));
}
int main()
{
    freopen("Sample Input.txt","r",stdin);
    int cse;
    int i,Flag;
    int HalfSpace;
    cse = 1;
    while ( scanf("%d%d%d%d%d%d",&w[1],&w[2],&w[3],&w[4],&w[5],&w[6]),w[1]||w[2]||w[3]||w[4]||w[5]||w[6])
    {
        HalfSpace = 0;
        for ( i = 1; i <= 6; i++)
            HalfSpace += w[i]*i;
        if ( HalfSpace%2 )  Flag = 0;
        else
        {
            HalfSpace/=2;
            Flag = knap(HalfSpace,6);
        }
        printf("Collection #%d:n",cse++);
        if ( Flag )
            printf("Can be divided.nn");
        else
            printf("Can't be divided.nn");
    }
    return 0;
}